CVE-2025-39862 wifi: mt76: mt7915: fix list corruption after hardware restart
A list corruption vulnerability in the mt7915 Wi-Fi driver allows attackers to cause memory corruption, potentially leading to code execution or system crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-39862?
CVE-2025-39862 is a high-severity memory corruption vulnerability in Linux kernel, published on 19 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7915: fix list corruption after hardware restart
Since stations are recreated from scratch, all lists that wcids are added to must be cleared before calling ieee80211_restart_hw. Set wcid->sta = 0 for each wcid entry in order to ensure that they are not added again before they are ready.
Weakness: CWE-787
Which versions are affected by CVE-2025-39862?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-39862?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-39862 being exploited?
There is no known exploitation of CVE-2025-39862 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-67542, BELL-CVE-2025-39862, DEBIAN-CVE-2025-39862, GHSA-89h6-xrm9-52q6, ROOT-OS-DEBIAN-13-CVE-2025-39862, ROOT-OS-UBUNTU-2404-CVE-2025-39862 and 1 more.